JPH11189000A - Decorative sheet with three-dimensional effect - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a decorative sheet having a three-dimensional effect. SOLUTION: A fringe pattern 11 made of many parallel straight lines of a predetermined pitch is formed by printing on a front surface of a transparent sheet 10 having a thickness. A moire fringe 12 formed by using the pattern 11 of the surface is formed by printing. In this decorative sheet, a lattice-like moire pattern is obtained by a moire phenomenon in the case of observing from a front or rear surface. This moire pattern has a depth, and seen in a sense of sinking from the surface of the sheet 10 to be a stereoscopic sense.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a table cover,
The present invention relates to decorative sheets used for shower curtains, window decoration sheets, materials for bags, and the like.

[0002]

2. Description of the Related Art Conventionally, a lenticular plate formed of a lens having a cross-sectional shape is used as a decorative body whose pattern or color changes depending on a viewing angle, or as a decorative body that gives a three-dimensional effect to a flat sheet. There is.

[0003]

In the case of producing a postcard-like decorative body using a lenticular plate, for example, it is necessary to accurately match the pitch of the printed matter with the pitch of the lenticular plate, and the production process requires extremely high precision. However, there is a problem that high cost is required and defective products are liable to occur.

Also, in order to produce a 3D (three-dimensional) effect,
It is common to create a three-dimensional image photographically,
Often lacks versatility, and can be made only relatively small. Further, since the lenticular plate is placed on the paper as a material, the lenticular plate becomes like a photographic paper, and thus lacks flexibility. Furthermore, since the lenticular plate has a repeating structure of a lens having a Kamaboko-shaped cross section as described above, when a soft material is used, a valley portion of the Kamaboko-shaped lens becomes a slit line and is easily broken. There was a problem.

The present invention has been made in view of such circumstances, and has as its object to provide a decorative sheet that forms a three-dimensional pattern on a transparent sheet by forming a pattern portion on the front and back surfaces of the sheet. I do.

[0006]

The decorative sheet according to the first invention is provided with a first pattern portion having a first pattern repeated at a predetermined pitch on one surface of the transparent sheet,
A second pattern portion having a second pattern similar in shape to the first pattern is provided on the other surface of the transparent sheet.

In a decorative sheet according to a second aspect of the present invention, a first pattern portion having a first pattern repeated at a predetermined pitch is provided on one surface of the transparent sheet, and the other surface of the transparent sheet is provided. Is provided with a second pattern portion having a second pattern repeated at a predetermined pitch.

[0008] The present invention is a sheet which is provided with a pattern portion in which a pattern is formed on the front and back surfaces of a transparent sheet, and which gives a three-dimensional effect even though it is flat by utilizing the effect of parallax stereography (parallax stereogram). is there. The inventor of the present application has proposed a decorative sheet in which a pattern and a color change depending on a viewing angle by forming colored patterns on both sides of a transparent sheet in Japanese Patent Application Laid-Open No. Hei 7-144358. FIG. 29 is a cross-sectional view of a decorative sheet having a pattern printed on both sides.

The decorative sheet 100 is formed by printing a pattern 101 on the front surface of a transparent sheet body 10 having a predetermined thickness and printing a pattern 102 on the back surface. When the part A of the decorative sheet 100 is viewed from the X direction, light is recognized bright in the a2 part without being blocked by the patterns 101 and 102, but light is recognized dark in the a1 part by the pattern 102, In the portion a3, light is blocked by the pattern 101 and is recognized as dark. Also, when looking at portion A from the Y direction,
The portion a1 is recognized as bright, but the portions a2 and a3 are recognized as dark because the light is blocked. As described above, the bright portion and the dark portion of the portion A of the decorative sheet 100 are different depending on the viewing angle. Therefore, by continuously changing the viewing angle,
The pattern and color of the decorative sheet 100 appear to change.

[0010] By the way, the left and right eyes of a human see the object from different angles. FIG. 30 is a cross-sectional view of a decorative sheet having a pattern printed on both sides, and patterns 103 and 104 are printed on the front and back surfaces of the transparent sheet 10, respectively. The patterns 103 and 104 formed on both sides are slightly different in size from each other, and are formed at slightly shifted positions on the front and back sides. Since the left and right eyes look at the portion B from different directions, as described above, the right eye and the left eye see images having different angles. That is, as shown in FIG. 30, the overlapping angle of the pattern 103 and the pattern 104 seen by the right eye is different from the overlapping angle seen by the left eye. When the images having such different angles are combined into one image by the human brain, when the image is focused behind the sheet, the image 10 is deeper than the decorative sheet.
5 can be seen, and when the image is focused in front of the sheet, an image protruding from the decorative sheet can be seen. As described above, by forming the predetermined pattern on the front and back surfaces of the transparent sheet body 10, a three-dimensional pattern can be created on the plane of the decorative sheet.

[0011] A decorative sheet according to a third aspect of the present invention is the decorative sheet according to the first or second aspect, wherein the first and second patterns are each formed by printing.

In the third invention, since the pattern is formed on the front and back of the transparent sheet by printing, a slit line is not formed and the transparent sheet is hardly damaged.

A decorative sheet according to a fourth aspect of the present invention is the decorative sheet according to the first aspect, wherein the first pattern is formed by unevenness having a rectangular cross section, and the second pattern is formed by printing. I do.

According to the fourth aspect of the present invention, since the first pattern is formed with unevenness, a three-dimensional effect is further obtained.

[0015] A decorative sheet according to a fifth aspect of the present invention is the decorative sheet according to the first or second aspect, wherein each of the first and second patterns is formed by unevenness having a rectangular cross section.

In the fifth aspect, since the first and second patterns are formed with irregularities, a three-dimensional effect can be further obtained by the strong action of the parallax stereogram.

According to a sixth aspect of the present invention, in the decorative sheet according to the first aspect, the second pattern is smaller than the first pattern.

According to the sixth aspect of the invention, since the second pattern has a similar shape in which the first pattern is reduced, a three-dimensional pattern having a depth greater than that of the decorative sheet is formed.

A decorative sheet according to a seventh aspect is the decorative sheet according to the first aspect, wherein the second pattern is larger than the first pattern.

According to the seventh aspect of the invention, the three-dimensional pattern protruding from the decorative sheet is formed because the second pattern has a similar shape in which the first pattern is enlarged.

According to an eighth aspect of the present invention, in the decorative sheet according to the third aspect, the second pattern is formed by printing a moiré pattern formed using the first pattern.

In the eighth aspect, since a moiré pattern is used as the second pattern, a three-dimensional effect is further obtained by the strong action of the parallax stereogram.

A decorative sheet according to a ninth aspect is the decorative sheet according to any one of the first to eighth aspects, wherein the first pattern portion is
The first pattern is formed on one surface of another transparent sheet, and the second pattern portion is formed by forming the second pattern on one surface of another transparent sheet. I do.

According to the ninth aspect, the first pattern and the second pattern are formed separately, so that the respective pattern portions can be freely combined, and the thickness of the decorative sheet is also small. It can be adjusted by the thickness of the sheet.

A decorative sheet according to a tenth aspect of the present invention is the decorative sheet according to any one of the first, second, third, and eighth aspects, wherein the first pattern portion includes the first pattern on one surface of the transparent sheet. The second pattern portion is printed by the second pattern portion.
Is printed on the other surface of the transparent sheet.

According to the tenth aspect, since the transparent sheet can be formed by performing double-sided printing, the number of steps can be reduced.

The decorative sheet according to an eleventh aspect is the decorative sheet according to the fourth aspect, wherein the first pattern portion has the first pattern portion in plan view.
And a cross section having a rectangular cross section is formed on one surface of the transparent sheet, and the second pattern portion is formed by printing the second pattern on the other surface of the transparent sheet. It is characterized by the following.

The decorative sheet according to a twelfth aspect is the decorative sheet according to the fifth aspect, wherein the first pattern portion has the first pattern portion in plan view.
The cross section is formed on one surface of the transparent sheet with irregularities having a rectangular cross section, and the second pattern portion has the second pattern in plan view, and the cross section has a rectangular irregularity. It is characterized in that it is formed on the other surface of the transparent sheet.

According to the eleventh or twelfth aspect, the first and second pattern portions are formed on the front and back of one transparent sheet, so that the structure for bonding the first and second pattern portions is unnecessary. Becomes

A decorative sheet according to a thirteenth aspect of the present invention is the decorative sheet according to the first to twelfth aspects, wherein the third pattern portion having a discontinuous light-transmitting region and forming a predetermined pattern is formed by the first pattern. Or the second pattern portion is provided on the side opposite to the transparent sheet.

According to the thirteenth aspect, since the light-transmitting region has a discontinuous light-transmitting region, when light passes through the third pattern portion, the three-dimensional pattern is not seen and the third pattern portion is not visible. Seeing the pattern, seeing the three-dimensional pattern without seeing the pattern of the third pattern portion when the light does not transmit through the third pattern portion and is reflected by the first and second pattern portions. Can be.

A decorative sheet according to a fourteenth aspect is the decorative sheet according to the first to twelfth aspects, wherein a predetermined pattern is formed on the front or back surface of the first pattern portion, the second pattern portion, or the transparent sheet. There is a feature.

According to the fourteenth aspect of the present invention, since a predetermined symbol is formed, a three-dimensional pattern can be further given a three-dimensional effect by comparing the perspective with the symbol.

[0034]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings showing the embodiments. Embodiment 1 FIG. 1 is a sectional view showing the structure of a decorative sheet according to Embodiment 1 of the present invention. In the figure, reference numeral 10 denotes a transparent sheet body having a thickness, and on the surface thereof, a stripe pattern 11 composed of a large number of parallel straight lines having a predetermined pitch, which is the first pattern portion.
Are formed by printing. FIG. 2 is an enlarged view of the stripe 11. On the back surface of the sheet body 10, moire fringes 12, which are the second pattern portions formed using the stripes 11 on the front surface, are formed by printing. FIG. 3 is an enlarged view of the moiré fringes 12. Specifically, the thickness of the sheet body 1 is 0.3 mm, and the stripes 11 have a line width of 0.2 mm and a pitch of 0.4 mm. The moiré stripes 12 are stripe-like 11
The pattern obtained by overlapping and overlapping the stripes reduced to 98% at 15 ° is formed by printing.

In the decorative sheet having such a structure, a moire pattern (or a negative / positive inverted rhombus pattern) was obtained by the moire phenomenon when viewed from the front or back surface.
FIG. 4 is an enlarged view of this moiré pattern. This moiré pattern had a depth and seemed to sink below the surface of the sheet body 10, and became a decorative sheet having a three-dimensional effect. It is known that a moiré pattern can be obtained when the patterns are overlapped. However, by changing the overlapping pitch between the pattern on the front surface and the pattern on the back surface by scaling or the like, a depth is obtained and a three-dimensional effect is obtained.

Further, the transparent sheet 3 on which the design 13 of the flapping bird was printed was brought into close contact with the stripes 11 on the surface. FIG. 5 is a sectional view showing the structure of the decorative sheet D1, and FIG. 6 is a plan view thereof. This decorative sheet D1 is
For example, a white bird pattern 13 appeared to appear in front of a moiré pattern having a depth formed in blue, and a three-dimensional effect was felt, and the design was extremely high.

Further, an adhesive was applied to the back surface of the decorative sheet D1 by a well-known method, and was adhered to a glass window. As a result, the glass had a three-dimensional effect due to diamond-shaped moiré, and had the effect of appearing as thick glass.

Embodiment 2 The decorative sheet according to the first embodiment described above has stripes 11 and moire stripes 12 formed on the sheet body 10.
Although the case where each sheet is formed by printing on the front and back surfaces is described, another transparent sheet body on which each pattern is printed may be formed in close contact with the front and back surfaces of the sheet body 10.

FIG. 7 is a sectional view showing the structure of such a decorative sheet. The front sheet 1 on which the stripes 11 were printed was brought into close contact with the surface of the sheet 10, and the back sheet 2 on which the moire stripes 12 were printed was brought into close contact with the back of the sheet 10. A transparent sheet 3 on which a bird pattern 13 is printed is brought into close contact with the front sheet body 1. Such a decorative sheet has an effect of giving a three-dimensional effect similarly to the first embodiment.

Further, for example, the bird pattern 13 described above may be printed between the front sheet 1 and the back sheet 2. FIG. 8 is a sectional view showing the structure of such a decorative sheet. Bird pattern 13 on the surface of thick sheet body 10
Is printed, and the surface sheet body 1 on which the stripes 11 are printed is adhered to the surface thereof, and the moire stripes 1 are
The back sheet body 2 on which the print No. 2 is printed is adhered. In the decorative sheet having such a structure, a pattern in which a three-dimensional effect was felt as in the first embodiment was observed.

Embodiment 3 In Embodiments 1 and 2 described above, the stripes 11 and the moiré stripes 12 similar to the stripes 11 are overlapped. In Embodiment 3, a combination of a plurality of large and small rhombuses is repeated at an equal pitch. The case where the geometric pattern 31 and the similar pattern 32 are overlapped will be described. In the decorative sheet D2 of the third embodiment, a geometric pattern 31 is formed on the front surface of a transparent sheet body 10 by printing, and a similar pattern 32 is formed on the back surface, similarly to FIG. 1 shown in the first embodiment.
Is formed by printing. FIG. 9 is an enlarged view showing the geometric pattern 31, and FIG. 10 is an enlarged view showing the similar pattern 32. Specifically, the thickness of the sheet 1 is 0.3 mm, and the geometric pattern 31 has a line width of 0.2 mm and a pitch of 0.8 m.
m. In addition, the similar pattern 32 is obtained by changing the geometric pattern 31 to 98.
%.

In the decorative sheet D2 having such a structure, a moire pattern in which a rhombus surrounded by rectangles was repeated was obtained by the moire phenomenon when viewed from the front surface or the back surface.
FIG. 11 is an enlarged view of this moiré pattern. This moiré pattern had a depth and seemed to sink below the surface of the sheet body 10, and became a decorative sheet having a three-dimensional effect. When a bag was created using this decorative sheet D2, a thick material feeling was felt and the bag was heavy.

Embodiment 4 FIG. Although the decorative sheet according to the third embodiment described above is formed by printing the geometric pattern 31 and the similar pattern 32 on the front and back surfaces of the sheet body 10 respectively, other transparent sheets on which the respective patterns are printed are formed. Sheet body,
As shown in FIG. 7, the same effect can be obtained even when the sheet body 10 is formed in close contact with the front and back surfaces of the sheet body 10.

Embodiment 5 FIG. In the fourth embodiment, a reduced pattern of the geometric pattern 31 is used as the similar pattern 32. In the fifth embodiment, an enlarged pattern will be described. In the decorative sheet of the fifth embodiment, similarly to FIG. 1 shown in the first embodiment, the geometric pattern 31 is formed by printing on the front surface of the transparent sheet body 10, and the similar pattern 32 is formed by printing on the back surface. I have. The geometric pattern 31 is the same as that shown in FIG. Specifically, the thickness of the sheet body 10 is 0.3 mm, the geometric pattern 31 has a line width of 0.2 mm,
The pitch is 0.8 mm. The similar pattern 32 was formed by enlarging the geometric pattern 31 by 101%.

In the decorative sheet having such a structure, a moire pattern in which a rhombus surrounded by rectangles was repeated was obtained due to the moire phenomenon when viewed from the front surface or the back surface. The moiré pattern appeared to be more prominent than the surface of the sheet body 10 and became a decorative sheet having a three-dimensional effect. When a transparent sheet on which a predetermined pattern was printed in multicolor was superimposed on the surface of the decorative sheet, the pattern sank into the moiré pattern, and the moiré pattern appeared more prominent. When this decorative sheet was used for a shower curtain, the complex moiré pattern made it feel like a thick cloth, and the design sank deeper into a luxurious curtain.

Embodiment 6 FIG. The decorative sheet according to the fifth embodiment described above describes the case where the geometric pattern 31 and the similar pattern 32 are formed by printing on the front and back surfaces of the sheet body 10, respectively. Sheet body,
As shown in FIG. 7, the same effect can be obtained even when the sheet body 10 is formed in close contact with the front and back surfaces of the sheet body 10. Further, in this case, the same effect can be obtained even if a pattern is printed between other transparent sheet members on which the respective patterns are printed.

Embodiment 7 FIG. FIG. 12 is an enlarged perspective view showing the structure of the decorative sheet according to the seventh embodiment, and FIG. 13 is a longitudinal sectional view thereof. In the figure, reference numeral 20 denotes a transparent sheet body having a thickness, and on the surface thereof, a turtle shell embossment 20a as the first pattern portion is formed. As shown in FIG. 12, the tortoise shell embossment 20a has a shape in which a plurality of rows of tortoiseshell protrusions having a regular hexagonal plan view and a trapezoidal cross section are arranged at equal pitches in plan view, and is formed by roller pressing. Further, on the back surface of the sheet body 20, a turtle shell emboss 20 is provided.
The tortoiseshell pattern 21 as the second pattern portion, which is obtained by reducing the tortoiseshell pattern in plan view a to 98%, is formed by printing. FIG. 14 is an enlarged view of the turtle pattern 21. Specifically, the thickness of the sheet body 20 is 0.3 mm, and the tortoiseshell protrusions of the tortoiseshell embossment 20a are formed with a line width of 1 inch and 75 lines.

In the decorative sheet having such a structure, when viewed from the front surface or the back surface, a moire-like moire pattern (a pattern in the tortoiseshell with a light color) was obtained by the moire phenomenon. FIG.
Is an enlarged view showing this moiré pattern. The moiré pattern is enlarged from the tortoiseshell pattern 21 formed on the back surface, and is 5 mm to 1.
Has 5 cm. This moiré pattern had a depth and seemed to sink below the surface of the sheet body 20, and became a decorative sheet having a three-dimensional effect.

On the surface of the decorative sheet, a transparent sheet on which a predetermined pattern was printed in multicolor was overlapped. FIG. 16 is a sectional view showing the structure of such a decorative sheet D3. As shown in the figure, when the transparent sheet 22 on which the design 23 was printed was brought into close contact with the tortoiseshell embossment 20a, the moiré pattern appeared to sink further into the back of the design. When this decorative sheet D3 was used for a shower curtain, a luxurious curtain having a higher design property was obtained due to folds and shaking of the curtain.

Embodiment 8 FIG. In the decorative sheet of the seventh embodiment described above, the case where the turtle embossment 20a and the turtle pattern 21 are directly formed on the front and back surfaces of the sheet body 20 is described. The transparent sheet may be formed in close contact with the front and back of another transparent sheet.

FIG. 17 is a sectional view showing the structure of such a decorative sheet. The surface sheet body 24 on which the turtle shell embossment 20a is formed is brought into close contact with the surface of the sheet body 20, and the turtle pattern 2
The back sheet 25 on which No. 1 was printed was brought into close contact with the back surface of the sheet 20. The transparent sheet 22 on which the design 23 is printed is adhered on the surface sheet body 24. In such a decorative sheet, a pattern having a three-dimensional effect was formed as in the seventh embodiment.

Further, for example, the above-described design 23 may be printed on the surface of the transparent sheet 20. FIG.
FIG. 2 is a cross-sectional view showing the structure of such a decorative sheet.
A pattern 23 is printed on the surface of the thick sheet body 20, and a surface sheet body 24 on which a turtle embossment 20 is formed is brought into close contact with the surface, and a turtle pattern 21
Is adhered to the back sheet body 25 on which is printed. In the decorative sheet having such a structure, a pattern in which a three-dimensional effect was felt was formed as in the seventh embodiment.

In the seventh embodiment and the eighth embodiment, a case is described in which a turtle pattern 21 in which the turtle pattern of the turtle embossment 20a in plan view is reduced to 98% is formed on the back surface of the sheet member 20. However, even if a turtle pattern enlarged to 101% is formed, a pattern having a three-dimensional effect can be obtained. In this case, it looks like it is raised more than the surface of the sheet body 20.

Embodiment 9 FIG. The decorative sheet according to the seventh embodiment describes the case where the turtle pattern 21 printed on the back surface is a positive pattern in which the color in the turtle is light, but in the ninth embodiment, the color in the turtle is negative. The case where a pattern is used will be described. In the decorative sheet according to the seventh embodiment, on the back surface of the sheet body 20, the turtle pattern in the plan view of the turtle embossment 20 a is 98%.
The second pattern portion of the turtle pattern 26
Are formed by printing. FIG. 19 is an enlarged view of the turtle pattern 26. Other configurations are the same as those of the seventh embodiment, and a description thereof will be omitted.

In the decorative sheet having such a structure, when viewed from the front surface or the back surface, a moire-like moire pattern (a pattern with a dark color in the tortoiseshell) was obtained by the moire phenomenon. FIG.
Is an enlarged view showing this moiré pattern. The moiré pattern is enlarged from the tortoiseshell pattern 26 formed on the back, and is 5 mm to 1.
Has 5 cm. This moiré pattern had a depth and seemed to sink below the surface of the sheet body 20, and became a decorative sheet having a three-dimensional effect.

Embodiment 10 FIG. Although the decorative sheet of the ninth embodiment described above describes a case in which the tortoiseshell embossment 20a and the tortoiseshell pattern 26 are formed on the front and back surfaces of the sheet member 20, respectively, As shown in FIG.
The same effect can be obtained even if the film is formed so as to be in close contact with the front and back sides of the zero. Further, in this case, as shown in FIG. 18, the same effect can be obtained even if the pattern 23 is printed between the other transparent sheet members on which the turtle embossment 20a and the turtle pattern 26 are formed.

Embodiment 11 FIG. FIG. 21 shows Embodiment 11
It is an expansion perspective view which shows the structure of the decorative sheet of FIG. 40 in the figure
Is a transparent sheet member having a thickness, and the surface thereof has a first stripe-like embossing 4 as the first pattern portion.
0a is formed. The stripe-like embossment 40a has a shape in which a plurality of ridges having a stripe-like shape in a plan view and a rectangular cross-sectional shape are arranged in parallel at an equal pitch, and is formed by roller pressing. On the back surface of the sheet body 40, a striped emboss 40a is provided.
The second stripe-shaped embossment 40b, which is the second pattern portion, in which the stripe pattern is reduced to 98%, is formed by roller pressing. First and second striped embossments 40a,
40b are formed so as to have an intersection angle with each other. Specifically, the sheet body 40 is a light pink translucent sheet,
It has a thickness of 0.3 mm, the stripes of the stripe-like embossments 40a are formed at a pitch of 0.6 mm, and the crossing angle of the first and second stripe-like embossments 40a, 40b is 15 °.

In the decorative sheet having such a structure, a striped moire pattern was obtained due to the moire phenomenon when viewed from the front surface or the back surface. This moiré pattern was a decorative sheet having a depth and a three-dimensional appearance that looked like a drape. In addition, since the stripe-like embossments formed on the front and back surfaces are formed so that the stripe directions intersect on both surfaces, there is an effect that it is difficult for the valleys to tear. Further, when a transparent sheet on which a predetermined pattern was printed in multicolor was superimposed on the front surface or the back surface of the decorative sheet, a luxurious curtain with higher decorativeness and design was obtained.

Embodiment 12 FIG. Embodiment 11 described above
Describes a case where the striped embossments 40a and 40b are formed directly on the front and back surfaces of the sheet body 40,
Each of the transparent sheet bodies on which the striped embossments 40a and 40b are formed may be formed in close contact with the front and back of another transparent sheet.

FIG. 22 is a sectional view showing the structure of such a decorative sheet. The front sheet body 41 on which the stripe-like embossments 40a were formed was brought into close contact with the surface of the sheet body 40, and the back sheet body 42 on which the stripe-like embossments 40b were formed was brought into close contact with the back surface of the sheet body 40. The pattern 43 is printed on the surface of the sheet body 40. Such a decorative sheet is described in Embodiment 11
As in the case of, decorativeness and design were high.

The eleventh embodiment and the twelfth embodiment
Describes the case where the striped embossments 40a and the reduced striped embossments 40b are formed on the front and back of the transparent sheet, but the present invention is not limited to this. For example, the embossed pattern on the back surface is replaced with the moiré fringes 12 shown in the first embodiment.
When it is formed in (see FIG. 3), a rhombic moiré pattern having a three-dimensional effect is seen, and a higher three-dimensional effect is obtained.

Embodiment 13 FIG. Embodiment 1 described above
Reference numeral 12 describes a case in which a pattern having a similar shape is formed on the front and back surfaces of the transparent sheet body. However, even if another pattern is formed, a three-dimensional effect can be similarly obtained. As shown in FIG. 1, a predetermined pattern is printed on the front and back surfaces of the transparent sheet body 10. On the surface of the sheet member, a stripe pattern 51 composed of a large number of parallel straight lines having a predetermined pitch, which is the first pattern portion.
Are formed by printing. FIG. 23 is an enlarged view of the stripe pattern 51. Further, on the back surface, a moiré curve 52 as the second pattern portion, which is obtained by repeating a curved moiré pattern at an equal pitch, is formed by printing. FIG. 24 is an enlarged view of the moiré curve 52. In such a decorative sheet D5,
When viewed from the front or back surface, a ripple-like moiré pattern was obtained by the moiré phenomenon. FIG. 25 is an enlarged view of this moiré pattern. This moiré pattern was a decorative sheet with a sense of depth and a three-dimensional effect.

Embodiment 14 FIG. Embodiment 14 described above
Describes the case where the striped pattern 51 and the moiré curve 52 are formed by printing on the front and back surfaces of the sheet body, respectively. The other transparent sheet body on which the respective patterns are printed is shown in FIG.
The same effect can be obtained even if the sheet is formed in close contact with the front and back of the sheet as shown in FIG. Further, in this case, the same effect can be obtained even if a pattern is printed between the other transparent sheet members on which the respective patterns are printed.

Embodiment 15 FIG. Embodiment 11
Describes a case where embosses having similar patterns are respectively formed on the front and back surfaces of the transparent sheet member 40, but a three-dimensional effect can be similarly obtained even if embosses having different patterns are formed. On the front surface of the transparent sheet, as shown in FIG. 21, strip-like embossments 40a are formed by roll pressing, and on the back surface,
A geometric emboss as a geometric pattern 31 combining a plurality of large and small diamonds as shown in FIG. 9 in a plan view is formed. In such a decorative sheet, a striped moiré pattern was obtained by the moiré phenomenon when viewed from the front surface or the back surface. This moiré pattern was a decorative sheet with a sense of depth and a three-dimensional effect.

Embodiment 16 FIG. Embodiment 15 described above
The decorative sheet describes the case where stripe-like embossing and geometric embossing are directly formed on the front and back surfaces of the sheet body.
FIG. 2 shows the other transparent sheet bodies on which the respective embosses are formed.
As shown in FIG. 2, the same effect can be obtained even when the sheet body is formed in close contact with the front and back surfaces of the sheet body. Further, in this case, the same effect can be obtained even if a pattern is printed between the other transparent sheet members on which the respective patterns are printed.

Embodiment 17 FIG. FIG. 26 shows Embodiment 1
It is sectional drawing which shows the structure of 7 decorative sheets D6. The transparent sheet 6 on which the line drawing 61 which is the third pattern portion is printed on the back surface side of the decorative sheet shown in the first embodiment.
0 is adhered. That is, FIG.
Are printed with transparent ink, and moire fringes 12 as shown in FIG. 3 are printed with milky white ink on the back surface. On the transparent sheet 60 superimposed on the back side, a line drawing 61 in which lines are drawn so that transparent portions remain at a fine pitch inside the flower pattern is printed with black ink. FIG. 27 is a diagram showing a line drawing 61 printed on a transparent sheet 60.

In the decorative sheet D6 having such a structure, a lattice-like moiré pattern that gives a three-dimensional effect is formed in the same manner as in the first embodiment, and the flower pattern appears to stand out. When the back side is bright, the moire pattern of the three-dimensional effect is thinned by the light transmitted through the sheet and the flower pattern is visible, and when the back side is dark, the moire pattern of the three-dimensional effect is hidden by the reflected light of the sheet. Can be seen. When such a decorative sheet D6 is used as a window sticking sheet, when the line drawing 61 side is stuck outdoors, a milky white lattice pattern can be seen deep from the inside at night and felt as thick glass at night, Became a decorative window decoration with high decorativeness with flower pattern visible.

Embodiment 18 FIG. In the seventeenth embodiment, the transparent sheet member 10 is used to form a three-dimensional effect pattern.
The case where stripes are formed on the front and back surfaces by printing is described. However, similar effects can be obtained by forming embosses on the front surface and printing on the back surface as shown in the seventh embodiment. FIG. 28 is a sectional view showing the structure of such a decorative sheet D7. The stripe-like embossment 40a as shown in FIG. 21 is formed on the surface of the sheet body 40 by roll press processing, and the moire stripes 12 as shown in FIG. 3 are printed on the back surface with milky white ink. FIG. 2 shows the transparent sheet 60 stacked on the back side.
As shown in FIG. 7, a line drawing 61 in which a transparent portion remains at a fine pitch inside the flower pattern is printed with black ink. With the decorative sheet D6 having such a structure, the same effect as that of the seventeenth embodiment was obtained, and when used as a window sticking sheet, a decorative window decoration having high decorativeness was obtained.

Although the seventeenth and eighteenth embodiments have described the case where the first and second pattern portions are printed with transparent ink and milky white ink, the present invention is not limited to this. When the light hits from the front side, the amount of reflected light is large, and when the light hits from the back side of the decorative sheet, the first
Any color may be used as long as the pattern formed by the second pattern portion is easily concealed. Embodiments 17 and 18 are the third embodiment.
The case where the pattern portion is printed with black ink is described, but the present invention is not limited to this. When the light does not hit the back side of the decorative sheet, the pattern of the third pattern portion is easily concealed, and the light is decorated. 3rd when hit from the back side of sheet
Any color may be used as long as the pattern of the pattern portion is easily visible.

In the decorative sheets of the seventeenth and eighteenth embodiments, the case where the line drawing 61 is superimposed on the back side of the sheet body is described. Is obtained. When this decorative sheet is used as a window sticking sheet, when the line drawing 61 side is stuck outdoors, a milky white lattice pattern can be seen deep from the inside at night and feels like thick glass, and a flower pattern in the morning and daytime. It became a decorative window decoration with high decorativeness.

Further, Embodiments 10 and 13
The same effect as in the seventeenth and eighteenth embodiments can be obtained by overlapping the line drawing 61 on the back surface side of the decorative sheet having the moire pattern having the three-dimensional effect described in the fifteenth embodiment.

In the above-described first to eighteenth embodiments, the transparent sheet may be any material as long as it is transparent enough to transmit light, and may be colored translucently. As the material, a sheet made of a general-purpose synthetic resin such as polyethylene, polypropylene, polyester, nylon, polyurethane, polyvinyl chloride, polyvinyl acetate, and polyacryl is used.

The printing method of the pattern is not particularly limited as long as it is a printing method capable of positioning, such as gravure printing or offset printing. Further, the printing may be a single color printing or a multi-color printing. Furthermore, in the above-described embodiment, the one-sided printing may be front printing or back printing.

Further, the ratio of reduction and enlargement for forming a pattern exhibiting a three-dimensional effect is considered to depend on the thickness of the transparent sheet. Is preferably 90% or more and less than 100%, and the enlargement ratio is preferably more than 100% and 110% or less. When it is reduced, it appears to be recessed; when it is enlarged, it appears to be raised. Further, the size and shape of the three-dimensional pattern differ depending on the overlapping angle of the patterns on the front and back surfaces. The shading of the three-dimensional pattern differs depending on the line width and the valley width of the pattern on the front and back sides, and the multi-color printing further enhances the three-dimensional effect. Furthermore, one pitch of the pattern on the front and back surfaces is preferably 0.8 mm or less, and a three-dimensional effect can be effectively obtained.

Further, in the first, third, and fourth embodiments described above,
In the fifth and the thirteenth and seventeenth embodiments, since the pattern is formed on both sides of the sheet by printing, the number of steps can be reduced by printing on both sides simultaneously. Embodiments 7 to
In the twelfth embodiment and the fifteenth, sixteenth, and eighteenth embodiments, a relatively large decorative sheet can be manufactured by performing roll pressing.

[0076]

As described above, in the present invention, since the pattern is formed on the front and back surfaces of the transparent sheet, a three-dimensional pattern can be seen on the sheet, and the decorativeness is extremely high. In addition, since the pattern can be formed on the front and back surfaces of the transparent sheet by printing, it can be easily manufactured without requiring high precision in the manufacturing process. In addition, since the pattern on the front and back surfaces is printed, no slit line is generated, and the surface is hardly damaged. Furthermore, a relatively large decorative sheet can be manufactured by roll-pressing the uneven pattern. Furthermore, since a flexible sheet can be used, workability is excellent. Thus, the decorative sheet of the present invention has an excellent effect.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a structure of a decorative sheet according to Embodiment 1 of the present invention.

FIG. 2 is an enlarged view of a stripe used in the first embodiment.

FIG. 3 is an enlarged view of a moire fringe used in the first embodiment.

FIG. 4 is an enlarged view of a moire pattern formed in the first embodiment.

FIG. 5 is a sectional view showing a structure of a decorative sheet D1 according to the first embodiment.

FIG. 6 is a plan view of FIG. 5;

FIG. 7 is a cross-sectional view illustrating a structure of a decorative sheet according to the second embodiment.

FIG. 8 is a sectional view showing the structure of another decorative sheet according to the second embodiment.

FIG. 9 is an enlarged view showing a geometric pattern used in the third embodiment.

FIG. 10 is an enlarged view showing a similar pattern used in the third embodiment.

FIG. 11 is a diagram showing a moire pattern formed in a third embodiment.

FIG. 12 is an enlarged perspective view illustrating a structure of a decorative sheet according to a seventh embodiment.

FIG. 13 is a longitudinal sectional view of FIG.

FIG. 14 is an enlarged view of a turtle pattern used in the seventh embodiment.

FIG. 15 is a diagram showing a moire pattern formed in a seventh embodiment.

FIG. 16 is a sectional view showing the structure of another decorative sheet D3 according to the seventh embodiment.

FIG. 17 is a cross-sectional view illustrating a structure of a decorative sheet according to an eighth embodiment.

FIG. 18 is a sectional view showing the structure of another decorative sheet according to the eighth embodiment.

FIG. 19 is an enlarged view of a turtle pattern used in the ninth embodiment.

FIG. 20 is a diagram showing a moire pattern formed in the ninth embodiment.

FIG. 21 is an enlarged perspective view showing a structure of a decorative sheet according to an eleventh embodiment.

FIG. 22 is a sectional view showing a structure of a decorative sheet according to a twelfth embodiment.

FIG. 23 is a stripe-like enlarged view used in the thirteenth embodiment.

FIG. 24 is an enlarged view of a moiré curve used in the thirteenth embodiment.

FIG. 25 is a diagram showing a moiré pattern formed in the thirteenth embodiment.

FIG. 26 is a sectional view showing a structure of a decorative sheet D6 according to a seventeenth embodiment.

FIG. 27 is a diagram showing a line drawing used in the seventeenth embodiment.

FIG. 28 is a sectional view showing the structure of a decorative sheet D7 according to the eighteenth embodiment.

FIG. 29 is a cross-sectional view of a decorative sheet disclosed in Japanese Patent Application Laid-Open No. Hei 7-144358 proposed by the present applicant.

FIG. 30 is a view for explaining a three-dimensional parallax of the decorative sheet of the present invention.

[Explanation of symbols]

 10, 20, 40 Transparent sheet body 11 Stripes (first pattern portion) 12 Moiré stripes (second pattern portion) 20a Turtle shell emboss (first pattern portion) 21 Turtle pattern (second pattern portion) 40a First stripe-like emboss (first pattern part) 40b First stripe-like emboss (second pattern part) 61 Line drawing

Claims (14)

[Claims] 1. A first pattern portion having a first pattern repeated at a predetermined pitch is provided on one surface of a transparent sheet, and a shape similar to the first pattern is provided on the other surface of the transparent sheet. A decorative pattern provided with a second pattern portion having a second pattern. 2. A first pattern portion having a first pattern repeated at a predetermined pitch is provided on one surface of the transparent sheet, and a first pattern portion having a first pattern repeated at a predetermined pitch is provided on the other surface of the transparent sheet. A decorative sheet provided with a second pattern portion having a second pattern. 3. The decorative sheet according to claim 1, wherein the first and second patterns are formed by printing, respectively. 4. The decorative sheet according to claim 1, wherein the first pattern is formed by unevenness having a rectangular cross section, and the second pattern is formed by printing. 5. The decorative sheet according to claim 1, wherein each of the first and second patterns is formed by unevenness having a rectangular cross section. 6. The decorative sheet according to claim 1, wherein the second pattern is smaller than the first pattern. 7. The decorative sheet according to claim 1, wherein the second pattern is larger than the first pattern. 8. The decorative sheet according to claim 3, wherein the second pattern is formed by printing a moiré pattern formed using the first pattern. 9. The first pattern portion, wherein the first pattern is formed on one surface of another transparent sheet, and the second pattern portion is formed on the second transparent sheet.
The decorative sheet according to any one of claims 1 to 8, wherein the pattern portion is formed by forming the second pattern on one surface of another transparent sheet. 10. The first pattern unit is formed by printing the first pattern on one surface of the transparent sheet, and the second pattern unit is configured to print the second pattern on the transparent sheet. The decorative sheet according to any one of claims 1, 2, 3, and 8, which is printed on another surface. 11. The first pattern portion has the first pattern in a plan view, rectangular cross-sections formed on one surface of the transparent sheet, and the second pattern portion has The decorative sheet according to claim 4, wherein the second pattern is printed on the other surface of the transparent sheet. 12. The first pattern portion has the first pattern in a plan view, a rectangular cross section formed on one surface of the transparent sheet, and the second pattern portion has 6. The decorative sheet according to claim 5, wherein the plan view is the second pattern, and irregularities having a rectangular cross section are formed on the other surface of the transparent sheet. 13. A third pattern portion having a predetermined pattern having a discontinuous light-transmitting region is opposite to the transparent sheet of the first pattern portion or the second pattern portion. The decorative sheet according to any one of claims 1 to 12, which is provided on a side of the decorative sheet. 14. A method according to claim 1, wherein a predetermined symbol is formed on the first pattern portion,
The decorative sheet according to any one of claims 1 to 12, wherein the decorative sheet is formed on the front surface or the back surface of the second pattern portion or the transparent sheet.